"The dose makes the poison." " is part of the solution." . . . is the science that studies the harmful effects of drugs, environmental contaminants, and naturally occurring substances found in food, water, air and soil. . . . research is important for improving the health of humans, animals and their environments. . . . studies are required to ensure the safety of medicines, household and gardening chemicals, and industrial and natural chemicals to which humans and animals are frequently exposed. . . . research is intended to identify harmful effects of potential new products and to determine safe levels for approved products. . . . research also provides understanding of the mechanisms by which chemical substances cause injury, and this information can be used in the treatment of poisonings. | 
